Allocate kMinimalBufferSize buffers in lithium

BUG=
R=ishell@chromium.org

Review URL: https://codereview.chromium.org/443023003

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22944 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/lithium.cc

@@ -457,7 +457,8 @@ LChunk* LChunk::NewChunk(HGraph* graph) {
 
 
 Handle<Code> LChunk::Codegen() {
-  MacroAssembler assembler(info()->isolate(), NULL, 0);
+  MacroAssembler assembler(info()->isolate(), NULL,
+                           Assembler::kMinimalBufferSize);
   LOG_CODE_EVENT(info()->isolate(),
                  CodeStartLinePosInfoRecordEvent(
                      assembler.positions_recorder()));