Fix x86 type conversions. test-art-host-oat passes.

- test-art-host-oat enabled in test builds.

- Created inline versions of float-to-int and double-to-int.

- Fixed calls to helper functions for long-to-float/double and
  float/double-to-long.

- Removed storePair and replaced its use with storeBaseDispWide (fixes
  iput-wide and aput-wide with doubles).

- Renamed helper functions to have art_ prefix.

- Fixed move-exception to store the result back.

- Fixed floating point comparison when the destination reg is the same as
  a source. The typing would get confused since the source is floating
  point, but the result is int, and a clobber is needed to overwrite the
  expected result type. A similar thing happens in float/double-to-int.

Change-Id: I0a876072254411aa42d6acadb8723be030727219
diff --git a/src/compiler/codegen/GenCommon.cc b/src/compiler/codegen/GenCommon.cc
index 14eaf1d..c9ba285 100644
--- a/src/compiler/codegen/GenCommon.cc
+++ b/src/compiler/codegen/GenCommon.cc
@@ -1060,7 +1060,7 @@
       if (isVolatile) {
         oatGenMemBarrier(cUnit, kST);
       }
-      storePair(cUnit, regPtr, rlSrc.lowReg, rlSrc.highReg);
+      storeBaseDispWide(cUnit, regPtr, 0, rlSrc.lowReg, rlSrc.highReg);
       if (isVolatile) {
         oatGenMemBarrier(cUnit, kSY);
       }
@@ -1642,7 +1642,7 @@
       oatFreeTemp(cUnit, regLen);
     }
 
-    storePair(cUnit, regPtr, rlSrc.lowReg, rlSrc.highReg);
+    storeBaseDispWide(cUnit, regPtr, 0, rlSrc.lowReg, rlSrc.highReg);
 
     oatFreeTemp(cUnit, regPtr);
   } else {