Add getExecutableName messages to functions and methods

Author: msimacek

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/function/PBuiltinFunction.java

@@ -175,6 +175,17 @@ public boolean isCallable() {
         return true;
     }
 
+    @ExportMessage
+    @SuppressWarnings("static-method")
+    boolean hasExecutableName() {
+        return true;
+    }
+
+    @ExportMessage
+    String getExecutableName() {
+        return getName();
+    }
+
     @Override
     @ExportMessage
     @SuppressWarnings("static-method")

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/function/PFunction.java

@@ -200,6 +200,17 @@ public boolean isCallable() {
         return true;
     }
 
+    @ExportMessage
+    @SuppressWarnings("static-method")
+    boolean hasExecutableName() {
+        return true;
+    }
+
+    @ExportMessage
+    String getExecutableName() {
+        return getName();
+    }
+
     @ExportMessage
     public SourceSection getSourceLocation() throws UnsupportedMessageException {
         SourceSection result = getSourceLocationDirect();

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/method/PBuiltinMethod.java

@@ -68,6 +68,17 @@ public boolean isCallable() {
         return true;
     }
 
+    @ExportMessage
+    @SuppressWarnings("static-method")
+    boolean hasExecutableName() {
+        return true;
+    }
+
+    @ExportMessage
+    Object getExecutableName() {
+        return function.getName();
+    }
+
     @ExportMessage
     @SuppressWarnings("static-method")
     boolean isHashable() {

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/builtins/objects/method/PMethod.java

@@ -71,6 +71,18 @@ public boolean isCallable() {
         return true;
     }
 
+    @ExportMessage
+    boolean hasExecutableName(
+                    @CachedLibrary("this.function") InteropLibrary lib) {
+        return lib.hasExecutableName(function);
+    }
+
+    @ExportMessage
+    Object getExecutableName(
+                    @CachedLibrary("this.function") InteropLibrary lib) throws UnsupportedMessageException {
+        return lib.getExecutableName(function);
+    }
+
     @ExportMessage
     protected SourceSection getSourceLocation(@CachedLibrary("this.function") InteropLibrary lib) throws UnsupportedMessageException {
         return lib.getSourceLocation(function);