changes for parsing iostream in a standard project with discovered symbols

core/org.eclipse.cdt.core/parser/ChangeLog-parser

@@ -1,3 +1,9 @@
+2004-04-07 Andrew Niefer
+	small changes to get through iostream under standard make with discovered symbols
+	- check null pointer in GCCScannerExtension.handlePreprocessorDirective, the null is probably a symptom of whatever 
+	  is giving us an unbalanced preprocessor directive
+	- catch exceptions during our 3rd attempt at a template argument in ExpressionParser.templateArgumentList
+
 2004-04-07 John Camelon
 	Provided a partial fix for https://bugs.eclipse.org/bugs/show_bug.cgi?id=50152
 	Updated IExpressionParser::expression() interface necessitated by this fix, and updated its clients appropriately.  

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/ExpressionParser.java

@@ -211,6 +211,9 @@ public class ExpressionParser implements IExpressionParser {
 	        	}catch( BacktrackException e ){
 	        		failed = true;
 	        		break;
+	        	}catch( Exception e ){
+	        		failed = true;
+	        		break;
 	        	}
         	}
         	

core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/parser/scanner/GCCScannerExtension.java

@@ -112,7 +112,7 @@ public class GCCScannerExtension implements IScannerExtension {
 			TraceUtil.outputTrace(scannerData.getLogService(), "GCCScannerExtension handling #include_next directive", null, null, null, null); //$NON-NLS-1$
 			// figure out the name of the current file and its path
 			IScannerContext context = scannerData.getContextStack().getCurrentContext();
-			if( context.getKind() != IScannerContext.ContextKind.INCLUSION ) 
+			if( context == null || context.getKind() != IScannerContext.ContextKind.INCLUSION ) 
 				return;
 			
 			String fullInclusionPath = context.getFilename();