Typescript expand selection doesn't properly handle if/else blocks

[JacksonKearl]

Issue Type: Bug

function foo() {
        let t = 0;
        if (c) {
            foo();
        } else {
            bar();
        }
        let y = 0;
}

I expect Expand Selection to expand the selection to the next larger semantically significant block. However, with the cursor in one of the conditional branches, expanding the selection will never step to include only the entire conditional. It instead steps from including an entire branch of the conditional to the body of the function. Along the way it steps through including the branch but with some extraneous curly braces from the other side of the branch, which I think it should never hit.

VS Code version: Code 1.31.0 (7c66f58, 2019-02-05T22:32:14.164Z)
OS version: Darwin x64 18.2.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-6700HQ CPU @ 2.60GHz (8 x 2600)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled rasterization: enabled surface_synchronization: enabled_on video_decode: enabled webgl: enabled webgl2: enabled
Load (avg)	2, 1, 1
Memory (System)	16.00GB (7.01GB free)
Process Argv	-psn_0_1687964
Screen Reader	no
VM	0%

Extensions (20)

Extension	Author (truncated)	Version
ng-template	Ang	0.1.11
gitlens	eam	9.5.0
EditorConfig	Edi	0.12.8
tslint	eg2	1.0.42
vscode-npm-script	eg2	0.3.5
insert-incrementing-numbers	jac	0.0.1
Lisp	mat	0.1.8
Angular-BeastCode	Mik	7.2.2
python	ms-	2019.1.0
cpptools	ms-	0.21.0
vsliveshare	ms-	0.3.1151
debugger-for-chrome	msj	4.11.1
vetur	oct	0.14.5
subtle-brackets	raf	3.0.0
colored-console-log	reh	1.0.7
code-settings-sync	Sha	3.2.4
vscode-multiclip	sle	0.1.5
code-spell-checker	str	1.6.10
pdf	tom	0.4.3
vscode-todo-highlight	way	1.0.4

[mjbvz]

Tracked upstream by microsoft/TypeScript#29071