Porting of revisions 6639, 6794 and 6805 to the 3.0 branch.

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index a11b76ec29880d5c3f623149d19e07ef0459e1fa..e71ff2bff3a2413ebc58a64895fd65c32c9ddfca 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -293,6 +293,11 @@ class MacroAssembler: public Assembler {
   // Unlink the stack handler on top of the stack from the try handler chain.
   void PopTryHandler();
 
+  // Activate the top handler in the try hander chain.
+  void Throw(Register value);
+
+  void ThrowUncatchable(UncatchableExceptionType type, Register value);
+
   // ---------------------------------------------------------------------------
   // Inline caching support