Psi2ir: improve exception stack traces

- Do not wrap exceptions resulting from generating error expressions
  multiple times, as that could lead to stack traces where the identical
  code is wrapped many times and is printed in the exception message on
  each step, which was difficult to read
- Add element location (file name, line number & position) to the
  message, similarly to exceptions from codegen, when catching and
  rethrowing exceptions at the top level

compiler/backend/src/org/jetbrains/kotlin/codegen/PackageCodegenImpl.java

@@ -75,7 +75,7 @@ public class PackageCodegenImpl implements PackageCodegen {
             }
             catch (Throwable e) {
                 VirtualFile vFile = file.getVirtualFile();
-                CodegenUtil.reportBackendException(e, "file facade code generation", vFile == null ? null : vFile.getUrl());
+                CodegenUtil.reportBackendException(e, "file facade code generation", vFile == null ? null : vFile.getUrl(), null);
             }
         }
     }