Use more style-guide-friendly names for some constants.

src/ia32/code-stubs-ia32.cc

Index: src/ia32/code-stubs-ia32.cc
diff --git a/src/ia32/code-stubs-ia32.cc b/src/ia32/code-stubs-ia32.cc
index f3eb09fa5150b49f756a4979128b3d6309bf8810..76545efcaa7340d53367465692d5b45af32cafef 100644
--- a/src/ia32/code-stubs-ia32.cc
+++ b/src/ia32/code-stubs-ia32.cc
@@ -3551,7 +3551,7 @@ void RegExpExecStub::Generate(MacroAssembler* masm) {
   // stack overflow (on the backtrack stack) was detected in RegExp code but
   // haven't created the exception yet. Handle that in the runtime system.
   // TODO(592): Rerunning the RegExp to get the stack overflow exception.
-  ExternalReference pending_exception(Isolate::k_pending_exception_address,
+  ExternalReference pending_exception(Isolate::kPendingExceptionAddress,
                                       masm->isolate());
   __ mov(edx,
          Operand::StaticVariable(ExternalReference::the_hole_value_location(
@@ -4341,7 +4341,7 @@ void CEntryStub::GenerateCore(MacroAssembler* masm,
   __ j(zero, &failure_returned);
 
   ExternalReference pending_exception_address(
-      Isolate::k_pending_exception_address, masm->isolate());
+      Isolate::kPendingExceptionAddress, masm->isolate());
 
   // Check that there is no pending exception, otherwise we
   // should have returned some failure value.
@@ -4482,11 +4482,11 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
   __ push(ebx);
 
   // Save copies of the top frame descriptor on the stack.
-  ExternalReference c_entry_fp(Isolate::k_c_entry_fp_address, masm->isolate());
+  ExternalReference c_entry_fp(Isolate::kCEntryFPAddress, masm->isolate());
   __ push(Operand::StaticVariable(c_entry_fp));
 
   // If this is the outermost JS call, set js_entry_sp value.
-  ExternalReference js_entry_sp(Isolate::k_js_entry_sp_address,
+  ExternalReference js_entry_sp(Isolate::kJSEntrySPAddress,
                                 masm->isolate());
   __ cmp(Operand::StaticVariable(js_entry_sp), Immediate(0));
   __ j(not_equal, &not_outermost_js, Label::kNear);
@@ -4503,7 +4503,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
 
   // Caught exception: Store result (exception) in the pending
   // exception field in the JSEnv and return a failure sentinel.
-  ExternalReference pending_exception(Isolate::k_pending_exception_address,
+  ExternalReference pending_exception(Isolate::kPendingExceptionAddress,
                                       masm->isolate());
   __ mov(Operand::StaticVariable(pending_exception), eax);
   __ mov(eax, reinterpret_cast<int32_t>(Failure::Exception()));
@@ -4554,7 +4554,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
 
   // Restore the top frame descriptor from the stack.
   __ pop(Operand::StaticVariable(ExternalReference(
-      Isolate::k_c_entry_fp_address,
+      Isolate::kCEntryFPAddress,
       masm->isolate())));
 
   // Restore callee-saved registers (C calling conventions).