Sort out a number of mismatched integer types in order to cut down the number of compiler warnings.

llvm-svn: 184333
diff --git a/lldb/source/Symbol/Symtab.cpp b/lldb/source/Symbol/Symtab.cpp
index b4c7554..f934c63 100644
--- a/lldb/source/Symbol/Symtab.cpp
+++ b/lldb/source/Symbol/Symtab.cpp
@@ -721,7 +721,7 @@
     uint32_t prev_size = indexes.size();
     uint32_t sym_end = m_symbols.size();
 
-    for (int i = 0; i < sym_end; i++)
+    for (uint32_t i = 0; i < sym_end; i++)
     {
         if (symbol_type == eSymbolTypeAny || m_symbols[i].GetType() == symbol_type)
         {
@@ -745,7 +745,7 @@
     uint32_t prev_size = indexes.size();
     uint32_t sym_end = m_symbols.size();
 
-    for (int i = 0; i < sym_end; i++)
+    for (uint32_t i = 0; i < sym_end; i++)
     {
         if (symbol_type == eSymbolTypeAny || m_symbols[i].GetType() == symbol_type)
         {