Generate line numbers for static delegates

Fixes debugger's "step into" for multi-file package

compiler/testData/lineNumber/staticDelegate/bar.kt

@@ -0,0 +1,4 @@
+
+fun bar() {
+
+}

compiler/testData/lineNumber/staticDelegate/foo.kt

@@ -0,0 +1,4 @@
+
+fun foo(): Int {
+    return 42
+}