Merge JumpToErrorHandler and JumpToExceptionHandler stubs on all architectures.

runtime/vm/stub_code_mips.cc

Index: runtime/vm/stub_code_mips.cc
===================================================================
--- runtime/vm/stub_code_mips.cc	(revision 21683)
+++ runtime/vm/stub_code_mips.cc	(working copy)
@@ -1015,20 +1015,13 @@
 }
 
 
-// Jump to the exception handler.
+// Jump to the exception or error handler.
 // No Result.
 void StubCode::GenerateJumpToExceptionHandlerStub(Assembler* assembler) {
   __ Unimplemented("JumpToExceptionHandler Stub");
 }
 
 
-// Jump to the error handler.
-// No Result.
-void StubCode::GenerateJumpToErrorHandlerStub(Assembler* assembler) {
-  __ Unimplemented("JumpToErrorHandler Stub");
-}
-
-
 void StubCode::GenerateEqualityWithNullArgStub(Assembler* assembler) {
   __ Unimplemented("EqualityWithNullArg Stub");
 }