Fix ambiguous phrasing in tests comments regarding $opt$.

Change-Id: I78e6bccbe35288df5de30700d3877bbcdef37d65
diff --git a/test/401-optimizing-compiler/src/Main.java b/test/401-optimizing-compiler/src/Main.java
index a1e62b3..f2e4518 100644
--- a/test/401-optimizing-compiler/src/Main.java
+++ b/test/401-optimizing-compiler/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 
 public class Main {
diff --git a/test/402-optimizing-control-flow/src/Main.java b/test/402-optimizing-control-flow/src/Main.java
index c9c24dd..4c93d26 100644
--- a/test/402-optimizing-control-flow/src/Main.java
+++ b/test/402-optimizing-control-flow/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 
 public class Main {
diff --git a/test/403-optimizing-long/src/Main.java b/test/403-optimizing-long/src/Main.java
index 21af4e1..5927d1c 100644
--- a/test/403-optimizing-long/src/Main.java
+++ b/test/403-optimizing-long/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 
 public class Main {
diff --git a/test/404-optimizing-allocator/src/Main.java b/test/404-optimizing-allocator/src/Main.java
index 7b31820..1ff5475 100644
--- a/test/404-optimizing-allocator/src/Main.java
+++ b/test/404-optimizing-allocator/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$reg$ is a marker for the optimizing compiler to ensure
+// Note that $opt$reg$ is a marker for the optimizing compiler to test
 // it does use its register allocator.
 
 public class Main {
diff --git a/test/405-optimizing-long-allocator/src/Main.java b/test/405-optimizing-long-allocator/src/Main.java
index 9fd840b..a0e0bb5 100644
--- a/test/405-optimizing-long-allocator/src/Main.java
+++ b/test/405-optimizing-long-allocator/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it compiles these methods.
 
 public class Main {
diff --git a/test/411-optimizing-arith-mul/src/Main.java b/test/411-optimizing-arith-mul/src/Main.java
index 3a5d7c0..60e418e 100644
--- a/test/411-optimizing-arith-mul/src/Main.java
+++ b/test/411-optimizing-arith-mul/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/412-new-array/src/Main.java b/test/412-new-array/src/Main.java
index e4669b8..b9c2a05 100644
--- a/test/412-new-array/src/Main.java
+++ b/test/412-new-array/src/Main.java
@@ -17,7 +17,7 @@
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 
 public class Main extends TestCase {
diff --git a/test/414-optimizing-arith-sub/src/Main.java b/test/414-optimizing-arith-sub/src/Main.java
index 30e8436..b4531cd 100644
--- a/test/414-optimizing-arith-sub/src/Main.java
+++ b/test/414-optimizing-arith-sub/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/415-optimizing-arith-neg/src/Main.java b/test/415-optimizing-arith-neg/src/Main.java
index bd8a158..cabf635 100644
--- a/test/415-optimizing-arith-neg/src/Main.java
+++ b/test/415-optimizing-arith-neg/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/417-optimizing-arith-div/src/Main.java b/test/417-optimizing-arith-div/src/Main.java
index 909ceb4..68e89b3 100644
--- a/test/417-optimizing-arith-div/src/Main.java
+++ b/test/417-optimizing-arith-div/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/421-large-frame/src/Main.java b/test/421-large-frame/src/Main.java
index 81896ab..6717ba0 100644
--- a/test/421-large-frame/src/Main.java
+++ b/test/421-large-frame/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/422-type-conversion/src/Main.java b/test/422-type-conversion/src/Main.java
index 9f8f417..146f309 100644
--- a/test/422-type-conversion/src/Main.java
+++ b/test/422-type-conversion/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/427-bitwise/src/Main.java b/test/427-bitwise/src/Main.java
index e984066..aa69554 100644
--- a/test/427-bitwise/src/Main.java
+++ b/test/427-bitwise/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/477-long-to-float-conversion-precision/src/Main.java b/test/477-long-to-float-conversion-precision/src/Main.java
index cd97039..568bc04 100644
--- a/test/477-long-to-float-conversion-precision/src/Main.java
+++ b/test/477-long-to-float-conversion-precision/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 public class Main {
 
diff --git a/test/705-register-conflict/src/Main.java b/test/705-register-conflict/src/Main.java
index 42c79fb..9ae10ec 100644
--- a/test/705-register-conflict/src/Main.java
+++ b/test/705-register-conflict/src/Main.java
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-// Note that $opt$ is a marker for the optimizing compiler to ensure
+// Note that $opt$ is a marker for the optimizing compiler to test
 // it does compile the method.
 
 public class Main {