Fix spelling, grammar, and match naming convention for test files.

llvm-svn: 193130
diff --git a/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp b/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
index 8621f1a..911c14e 100644
--- a/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
+++ b/llvm/lib/Transforms/IPO/DeadArgumentElimination.cpp
@@ -359,13 +359,13 @@
 
   // If a function seen at compile time is not necessarily the one linked to
   // the binary being built, it is illegal to change the actual arguments
-  // passing to it. These functions can be captured by isWeakForLinker().
+  // passed to it. These functions can be captured by isWeakForLinker().
   // *NOTE* that mayBeOverridden() is insufficient for this purpose as it
-  // dosen't include linkage types like AvailableExternallyLinkage and
+  // doesn't include linkage types like AvailableExternallyLinkage and
   // LinkOnceODRLinkage. Take link_odr* as an example, it indicates a set of
   // *EQUIVALENT* globals that can be merged at link-time. However, the
   // semantic of *EQUIVALENT*-functions includes parameters. Changing
-  // parameters breaks the assumption.
+  // parameters breaks this assumption.
   //
   if (Fn.isWeakForLinker())
     return false;