🧪 test: add LSP json fixtures and provider suite

lsp-server/test/test_provider/fixtures/workspace/WorkspaceUnit.tsf

@@ -0,0 +1,29 @@
+unit WorkspaceUnit;
+interface
+
+type
+  WorkspaceUnitClass = class
+  public
+    function Create();
+    function Work(): integer;
+  end;
+
+function WorkspaceUnitFunc(): integer;
+
+implementation
+
+function WorkspaceUnitClass.Create();
+begin
+end;
+
+function WorkspaceUnitClass.Work(): integer;
+begin
+  return 9;
+end;
+
+function WorkspaceUnitFunc(): integer;
+begin
+  return 7;
+end;
+
+end.