logic: show real code of signatures in tooltips

* added new location type
* refactored old recording code
* record signature locations for cxx functions and java methods
* added signature locations to sample project indexer tests
* ignore signature locations in ui
* signatures in tooltip with qualified name of the function/method
* added test for finding signature location of constructor with initializer list

java_indexer/src/main/java/com/sourcetrail/AstVisitor.java

@@ -234,11 +234,39 @@ public abstract class AstVisitor extends ASTVisitor
 		
 		DeclName symbolName = DeclNameResolver.getQualifiedDeclName(node, m_filePath, m_compilationUnit);
 		
-		m_client.recordSymbolWithLocationAndScope(
+		
+		Range signatureRange = getRange(node);
+		if (!node.thrownExceptionTypes().isEmpty())
+		{
+			Object lastExceptionType = node.thrownExceptionTypes().get(node.thrownExceptionTypes().size() - 1);
+			if (lastExceptionType instanceof ASTNode)
+			{
+				signatureRange.end = getRange((ASTNode) lastExceptionType).end;
+			}
+		}
+		else
+		{
+			signatureRange.end = getRange(node.getName()).end;
+			
+			if (!node.parameters().isEmpty())
+			{
+				Object lastParametersType = node.parameters().get(node.parameters().size() - 1);
+				if (lastParametersType instanceof ASTNode)
+				{
+					signatureRange.end = getRange((ASTNode) lastParametersType).end;
+				}
+			}
+			
+			signatureRange.end = m_fileContent.findStartPosition(")", signatureRange.end);
+		}
+		
+		
+		m_client.recordSymbolWithLocationAndScopeAndSignature(
 				symbolName.toNameHierarchy(), 
 				SymbolKind.METHOD,
 				getRange(node.getName()), 
 				getRange(node), 
+				signatureRange,
 				AccessKind.fromModifiers(node.getModifiers()),
 				DefinitionKind.EXPLICIT);
 		

java_indexer/src/main/java/com/sourcetrail/AstVisitorClient.java

@@ -20,12 +20,19 @@ public abstract class AstVisitorClient
 			NameHierarchy symbolName, SymbolKind symbolKind, 
 			Range range,
 			AccessKind access, DefinitionKind definitionKind);
-	
+
 	public abstract void recordSymbolWithLocationAndScope(
 			NameHierarchy symbolName, SymbolKind symbolKind, 
 			Range range,
 			Range scopeRange,
 			AccessKind access, DefinitionKind definitionKind);
+	
+	public abstract void recordSymbolWithLocationAndScopeAndSignature(
+			NameHierarchy symbolName, SymbolKind symbolKind, 
+			Range range,
+			Range scopeRange,
+			Range signatureRange,
+			AccessKind access, DefinitionKind definitionKind);
 
 	public abstract void recordReference(
 			ReferenceKind referenceKind, NameHierarchy referencedName, NameHierarchy contextName, 

java_indexer/src/main/java/com/sourcetrail/JavaIndexer.java

@@ -252,6 +252,14 @@ public class JavaIndexer
 			int scopeBeginLine, int scopeBeginColumn, int scopeEndLine, int scopeEndColumn,
 			int access, int definitionKind
 	);
+	
+	static public native void recordSymbolWithLocationAndScopeAndSignature(
+			int address, String symbolName, int symbolType, 
+			int beginLine, int beginColumn, int endLine, int endColumn,
+			int scopeBeginLine, int scopeBeginColumn, int scopeEndLine, int scopeEndColumn,
+			int signatureBeginLine, int signatureBeginColumn, int signatureEndLine, int signatureEndColumn,
+			int access, int definitionKind
+	);
 
 	static public native void recordReference(
 			int address, int referenceKind, String referencedName, String contextName, int beginLine, int beginColumn, int endLine, int endColumn);

java_indexer/src/main/java/com/sourcetrail/JavaIndexerAstVisitorClient.java

@@ -68,6 +68,19 @@ public class JavaIndexerAstVisitorClient extends AstVisitorClient
 				access.getValue(), definitionKind.getValue());
 	}
 
+	@Override
+	public void recordSymbolWithLocationAndScopeAndSignature(
+			NameHierarchy symbolName, SymbolKind symbolKind, Range range,
+			Range scopeRange, Range signatureRange, AccessKind access, DefinitionKind definitionKind) 
+	{
+		JavaIndexer.recordSymbolWithLocationAndScopeAndSignature(
+				m_address, symbolName.serialize(), symbolKind.getValue(), 
+				range.begin.line, range.begin.column, range.end.line, range.end.column, 
+				scopeRange.begin.line, scopeRange.begin.column, scopeRange.end.line, scopeRange.end.column, 
+				signatureRange.begin.line, signatureRange.begin.column, signatureRange.end.line, signatureRange.end.column, 
+				access.getValue(), definitionKind.getValue());
+	}
+
 	@Override
 	public void recordReference(
 			ReferenceKind referenceKind, NameHierarchy referencedName,