More spelling changes.

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
===================================================================
--- src/mips/macro-assembler-mips.h	(revision 10402)
+++ src/mips/macro-assembler-mips.h	(working copy)
@@ -340,7 +340,7 @@
                       Register scratch3,
                       Label* object_is_white_and_not_data);
 
-  // Detects conservatively whether an object is data-only, ie it does need to
+  // Detects conservatively whether an object is data-only, i.e. it does need to
   // be scanned by the garbage collector.
   void JumpIfDataObject(Register value,
                         Register scratch,
@@ -421,7 +421,7 @@
   }
 
   // Check if the given instruction is a 'type' marker.
-  // ie. check if it is a sll zero_reg, zero_reg, <type> (referenced as
+  // i.e. check if it is a sll zero_reg, zero_reg, <type> (referenced as
   // nop(type)). These instructions are generated to mark special location in
   // the code, like some special IC code.
   static inline bool IsMarkedCode(Instr instr, int type) {
@@ -1132,7 +1132,7 @@
 
   // Calls an API function.  Allocates HandleScope, extracts returned value
   // from handle and propagates exceptions.  Restores context.  stack_space
-  // - space to be unwound on exit (includes the call js arguments space and
+  // - space to be unwound on exit (includes the call JS arguments space and
   // the additional space allocated for the fast call).
   void CallApiFunctionAndReturn(ExternalReference function, int stack_space);