Avoid constant pool blocking for too long...

src/arm/assembler-arm.h

Index: src/arm/assembler-arm.h
===================================================================
--- src/arm/assembler-arm.h	(revision 4506)
+++ src/arm/assembler-arm.h	(working copy)
@@ -941,6 +941,10 @@
     DISALLOW_IMPLICIT_CONSTRUCTORS(BlockConstPoolScope);
   };
 
+  // Postpone the generation of the constant pool for the specified number of
+  // instructions.
+  void BlockConstPoolFor(int instructions);
+
   // Debugging
 
   // Mark address of the ExitJSFrame code.
@@ -958,13 +962,6 @@
   int current_position() const { return current_position_; }
   int current_statement_position() const { return current_statement_position_; }
 
-  void StartBlockConstPool() {
-    const_pool_blocked_nesting_++;
-  }
-  void EndBlockConstPool() {
-    const_pool_blocked_nesting_--;
-  }
-
   // Read/patch instructions
   static Instr instr_at(byte* pc) { return *reinterpret_cast<Instr*>(pc); }
   static void instr_at_put(byte* pc, Instr instr) {
@@ -1001,6 +998,13 @@
     if (no_const_pool_before_ < pc_offset) no_const_pool_before_ = pc_offset;
   }
 
+  void StartBlockConstPool() {
+    const_pool_blocked_nesting_++;
+  }
+  void EndBlockConstPool() {
+    const_pool_blocked_nesting_--;
+  }
+
  private:
   // Code buffer:
   // The buffer into which code and relocation info are generated.