[analyzer][NFC] Fix some incorrect uses of -analyzer-config options

I'm in the process of refactoring AnalyzerOptions. The main motivation behind
here is to emit warnings if an invalid -analyzer-config option is given from
the command line, and be able to list them all.

In this patch, I found some flags that should've been used as checker options,
or have absolutely no mention of in AnalyzerOptions, or are nonexistent.

- NonLocalizedStringChecker now uses its "AggressiveReport" flag as a checker
    option
- lib/StaticAnalyzer/Frontend/ModelInjector.cpp now accesses the "model-path"
    option through a getter in AnalyzerOptions
- -analyzer-config path-diagnostics-alternate=false is not a thing, I removed it,
- lib/StaticAnalyzer/Checkers/AllocationDiagnostics.cpp and
    lib/StaticAnalyzer/Checkers/AllocationDiagnostics.h are weird, they actually
    only contain an option getter. I deleted them, and fixed RetainCountChecker
    to get it's "leak-diagnostics-reference-allocation" option as a checker option,
- "region-store-small-struct-limit" has a proper getter now.

Differential Revision: https://reviews.llvm.org/D53276

llvm-svn: 345985
diff --git a/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker/RetainCountChecker.h b/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker/RetainCountChecker.h
index 388c2ea..3c50763 100644
--- a/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker/RetainCountChecker.h
+++ b/clang/lib/StaticAnalyzer/Checkers/RetainCountChecker/RetainCountChecker.h
@@ -16,7 +16,6 @@
 #define LLVM_CLANG_LIB_STATICANALYZER_CHECKERS_RETAINCOUNTCHECKER_H
 
 #include "../ClangSACheckers.h"
-#include "../AllocationDiagnostics.h"
 #include "RetainCountDiagnostics.h"
 #include "clang/AST/Attr.h"
 #include "clang/AST/DeclCXX.h"
@@ -266,25 +265,18 @@
   mutable std::unique_ptr<RetainSummaryManager> Summaries;
   mutable SummaryLogTy SummaryLog;
 
-  AnalyzerOptions &Options;
   mutable bool ShouldResetSummaryLog;
 
+public:
   /// Optional setting to indicate if leak reports should include
   /// the allocation line.
-  mutable bool IncludeAllocationLine;
+  bool IncludeAllocationLine;
+  bool ShouldCheckOSObjectRetainCount;
 
-public:
-  RetainCountChecker(AnalyzerOptions &Options)
-      : Options(Options), ShouldResetSummaryLog(false),
-        IncludeAllocationLine(
-            shouldIncludeAllocationSiteInLeakDiagnostics(Options)) {}
+  RetainCountChecker() : ShouldResetSummaryLog(false) {}
 
   ~RetainCountChecker() override { DeleteContainerSeconds(DeadSymbolTags); }
 
-  bool shouldCheckOSObjectRetainCount() const {
-    return Options.getBooleanOption("CheckOSObject", true, this);
-  }
-
   void checkEndAnalysis(ExplodedGraph &G, BugReporter &BR,
                         ExprEngine &Eng) const {
     // FIXME: This is a hack to make sure the summary log gets cleared between
@@ -339,7 +331,7 @@
     bool ARCEnabled = (bool)Ctx.getLangOpts().ObjCAutoRefCount;
     if (!Summaries) {
       Summaries.reset(new RetainSummaryManager(
-          Ctx, ARCEnabled, shouldCheckOSObjectRetainCount()));
+          Ctx, ARCEnabled, ShouldCheckOSObjectRetainCount));
     } else {
       assert(Summaries->isARCEnabled() == ARCEnabled);
     }