Revert "[analyzer] Support generating and reasoning over more symbolic constraint types"

Assertion `Loc::isLocType(SSE->getLHS()->getType())' failed in Analysis/PR3991.m

This reverts commit e469ff2759275e67f9072b3d67fac90f647c0fe6.

llvm-svn: 307853
diff --git a/clang/test/Analysis/explain-svals.cpp b/clang/test/Analysis/explain-svals.cpp
index 6a67e16..d4b56a3 100644
--- a/clang/test/Analysis/explain-svals.cpp
+++ b/clang/test/Analysis/explain-svals.cpp
@@ -69,7 +69,7 @@
   static int stat;
   clang_analyzer_explain(x + 1); // expected-warning-re{{{{^\(argument 'x'\) \+ 1$}}}}
   clang_analyzer_explain(1 + y); // expected-warning-re{{{{^\(argument 'y'\) \+ 1$}}}}
-  clang_analyzer_explain(x + y); // expected-warning-re{{{{^\(argument 'x'\) \+ \(argument 'y'\)$}}}}
+  clang_analyzer_explain(x + y); // expected-warning-re{{{{^unknown value$}}}}
   clang_analyzer_explain(z); // expected-warning-re{{{{^undefined value$}}}}
   clang_analyzer_explain(&z); // expected-warning-re{{{{^pointer to local variable 'z'$}}}}
   clang_analyzer_explain(stat); // expected-warning-re{{{{^signed 32-bit integer '0'$}}}}