Disable deprecation warnings in modules where they are unavoidable (#263)

These two modules refer to "AST.JLS8".  If you have Java 9 installed,
then "AST.JLS8" is marked as deprecated, and we can a warning unless
we suppress or disable the deprecation warning wherever "AST.JLS8" is
used.  However, if you don't have Java 9 installed, then "AST.JLS8" is
not deprecated, and trying to suppress deprecation warnings where
"AST.JLS8" is used instead produces warnings about unnecessary warning
suppression.  Aagh!  Turning off the deprecation warnings entirely for
these two modules seems like the only sane compromise.

com.ibm.wala.cast.java.ecj/.settings/org.eclipse.jdt.core.prefs

@@ -16,7 +16,7 @@ org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.autoboxing=error
 org.eclipse.jdt.core.compiler.problem.comparingIdentical=error
 org.eclipse.jdt.core.compiler.problem.deadCode=error
-org.eclipse.jdt.core.compiler.problem.deprecation=warning
+org.eclipse.jdt.core.compiler.problem.deprecation=ignore
 org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=disabled
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=error

com.ibm.wala.cast.java.ecj/src/com/ibm/wala/cast/java/translator/jdt/JDTJava2CAstTranslator.java

@@ -1044,7 +1044,6 @@ public abstract class JDTJava2CAstTranslator<T extends Position> {
         private Collection<CAstType> fExceptionTypes = null;
 
         @Override
-        @SuppressWarnings("deprecation")
         public CAstType getReturnType() {
           if (fReturnType != null)
             return fTypeDict.getCAstTypeFor(fReturnType);

com.ibm.wala.cast.java.ecj/src/com/ibm/wala/cast/java/translator/jdt/ecj/ECJSourceModuleTranslator.java

@@ -184,7 +184,6 @@ public class ECJSourceModuleTranslator implements SourceModuleTranslator {
     }
     
     String[] sourceFiles = sources.toArray(new String[ sources.size() ]);
-    @SuppressWarnings("deprecation")
     final ASTParser parser = ASTParser.newParser(AST.JLS8);
     parser.setResolveBindings(true);
     parser.setEnvironment(libs, this.sources, null, false);

com.ibm.wala.ide.jdt/.settings/org.eclipse.jdt.core.prefs

@@ -23,7 +23,7 @@ org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.autoboxing=ignore
 org.eclipse.jdt.core.compiler.problem.comparingIdentical=error
 org.eclipse.jdt.core.compiler.problem.deadCode=error
-org.eclipse.jdt.core.compiler.problem.deprecation=warning
+org.eclipse.jdt.core.compiler.problem.deprecation=ignore
 org.eclipse.jdt.core.compiler.problem.deprecationInDeprecatedCode=disabled
 org.eclipse.jdt.core.compiler.problem.deprecationWhenOverridingDeprecatedMethod=disabled
 org.eclipse.jdt.core.compiler.problem.discouragedReference=error

com.ibm.wala.ide.jdt/source/com/ibm/wala/cast/java/translator/jdt/JDTSourceModuleTranslator.java

@@ -172,7 +172,6 @@ public class JDTSourceModuleTranslator implements SourceModuleTranslator {
       projectsFiles.get(proj).put(JavaCore.createCompilationUnitFrom(entry.getIFile()), entry);
     }
 
-    @SuppressWarnings("deprecation")
     final ASTParser parser = ASTParser.newParser(AST.JLS8);
  
     for (final Map.Entry<IProject,Map<ICompilationUnit,EclipseSourceFileModule>> proj : projectsFiles.entrySet()) {

com.ibm.wala.ide.jdt/source/com/ibm/wala/ide/util/JdtUtil.java

@@ -578,7 +578,6 @@ public class JdtUtil {
   }
 
   public static ASTNode getAST(IFile javaSourceFile) {
-	  @SuppressWarnings("deprecation")
 	  ASTParser parser = ASTParser.newParser(AST.JLS3);
 	  parser.setSource(JavaCore.createCompilationUnitFrom(javaSourceFile));
 	  parser.setProject(JavaCore.create(javaSourceFile.getProject()));