Ensure the shared symbol table levels are read-only to make multi-threading safe.  Also removed inadvertent extra copies of the symbol table shared across all stages.



git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@22939 e7fa87d3-cd2b-0410-9028-fcbf551c1848
diff --git a/Test/runtests b/Test/runtests
index dca678f..3126fca 100644
--- a/Test/runtests
+++ b/Test/runtests
@@ -27,3 +27,12 @@
 
 runLinkTest mains1.frag mains2.frag noMain1.geom noMain2.geom
 runLinkTest noMain.vert mains.frag 
+
+#
+# multi-threaded test
+#
+
+echo Comparing single thread to multithread for all tests in current directory...
+$EXE -i *.vert *.geom *.frag *.tes* *.comp > singleThread.out
+$EXE -i *.vert *.geom *.frag *.tes* *.comp -t > multiThread.out
+diff singleThread.out multiThread.out