- Added error case that enforces whitespace in between directive tokens.
- Upon encountering invalid directive tokens/states we bail out of parsing and log an appropriate error.
- Raised directive parse errors to the IR layer. This is slightly hacky given the parsers limitations; we swap out the error sink temporarily to capture all directive parser errors and then shove the errors collected onto the directives chunk generator.
- Added a `MalformedDiretiveIRNode` and corresponding pass to represent directives that are in an invalid state. Chose to not take the path of using the default `DirectiveIRNode.Diagnostics` member to enable users who are extending directives to only ever have to work with "valid" directives. If they want to work with malformed directives they can search the IR document for their malformed counterpart and handle it separately.
- Updated existing test expectations
- Removed some existing tests that were no longer valid (we don't call into user code if a directive is malformed).
#1173
- Added a `Diagnostics` and `HasDiagnostics` properties to `RazorIRNode`. The `HasDiagnostics` property was necessary in order to traverse nodes without forcibly instantiating their diagnostic lists.
- Added `GetAllDiagnostics` extension method for `RazorIRNode` to provide a way to retrieve all diagnostics that exist on and under a `RazorIRNode`.
- Updated `RazorIRNodeWriter` to display any diagnostics that exist on IR nodes.
- Internal `RazorIRNode`s do not have mutable `Diagnostics` because we don't currently add diagnostics to these elements.
- Added `DefaultIRLoweringPhaseTest` to validate that errors flow from syntax tree to IR document. Also added a missing test.
- Updated the `CSharpLoweringPhaseTest`s to properly validate that errors flow from IR document => csharp document. This resulted in movement of code to the ir lowering phase tests.
#1412
Also did some spring cleaning on redundent references in the language
services package.
Note that the 'immutable' packages are now totally redundant with
Shell.15.0. You're supposed to use one or the other. Since our minimum VS
is 15, I just went with shell 15.0.
Now the VSIX project doesn't have many references in it.