Remove Iceland.

ART_USE_LLVM_COMPILER is removed and when necessary ART_USE_PORTABLE_COMPILER
is used in #ifdefs.

Change-Id: Iffa9ce5b0246c7c427ccc4e67ecc134624632e55
diff --git a/src/exception_test.cc b/src/exception_test.cc
index 240bf95..1d32f1b 100644
--- a/src/exception_test.cc
+++ b/src/exception_test.cc
@@ -145,7 +145,7 @@
   ASSERT_EQ(kStackAlignment, 16);
   ASSERT_EQ(sizeof(uintptr_t), sizeof(uint32_t));
 
-#if !defined(ART_USE_LLVM_COMPILER)
+#if !defined(ART_USE_PORTABLE_COMPILER)
   // Create two fake stack frames with mapping data created in SetUp. We map offset 3 in the code
   // to dex pc 3.
   const uint32_t dex_pc = 3;
@@ -213,7 +213,7 @@
   EXPECT_STREQ("f", trace_array->Get(1)->GetMethodName()->ToModifiedUtf8().c_str());
   EXPECT_EQ(22, trace_array->Get(1)->GetLineNumber());
 
-#if !defined(ART_USE_LLVM_COMPILER)
+#if !defined(ART_USE_PORTABLE_COMPILER)
   thread->SetTopOfStack(NULL, 0); // Disarm the assertion that no code is running when we detach.
 #else
   thread->PopShadowFrame();