Fix warnings about comparison/assignement between signed and unsigned types. Submitted by timeless.
BUG=13
Review URL: http://codereview.appspot.com/1895051

git-svn-id: https://angleproject.googlecode.com/svn/trunk@378 736b8ea6-26fd-11df-bfd4-992fa37f6226
diff --git a/src/compiler/preprocessor/symbols.c b/src/compiler/preprocessor/symbols.c
index 1f4c05e..5baedf5 100644
--- a/src/compiler/preprocessor/symbols.c
+++ b/src/compiler/preprocessor/symbols.c
@@ -152,7 +152,7 @@
 {
     Symbol *lSymb;
     char *pch;
-    int ii;
+    unsigned int ii;
 
     lSymb = (Symbol *) mem_Alloc(fScope->pool, sizeof(Symbol));
     lSymb->left = NULL;