avoid materializing source sections on the fast path by not including rewritten functions in the stacktrace

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/function/FunctionRootNode.java

@@ -164,6 +164,16 @@ public void setRewritten() {
         this.isRewritten = true;
     }
 
+    @Override
+    public boolean isCaptureFramesForTrace() {
+        return !isRewritten;
+    }
+
+    @Override
+    public boolean isInternal() {
+        return isRewritten;
+    }
+
     @Override
     public void initializeFrame(VirtualFrame frame) {
         initClosureAndCellVars(frame);

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/nodes/generator/GeneratorFunctionRootNode.java

@@ -41,8 +41,8 @@
 package com.oracle.graal.python.nodes.generator;
 
 import com.oracle.graal.python.PythonLanguage;
-import com.oracle.graal.python.builtins.objects.function.Signature;
 import com.oracle.graal.python.builtins.objects.function.PArguments;
+import com.oracle.graal.python.builtins.objects.function.Signature;
 import com.oracle.graal.python.nodes.PClosureFunctionRootNode;
 import com.oracle.graal.python.parser.ExecutionCellSlots;
 import com.oracle.graal.python.runtime.object.PythonObjectFactory;
@@ -88,6 +88,16 @@ public String getName() {
         return name;
     }
 
+    @Override
+    public boolean isCaptureFramesForTrace() {
+        return false;
+    }
+
+    @Override
+    public boolean isInternal() {
+        return true;
+    }
+
     @Override
     public void initializeFrame(VirtualFrame frame) {
         // nothing to do