function outline does not sync with position of functions in file.

[netpassprod1]

Issue Type: Bug

Open procedural PHP file, open explorer sidebar to show the outline list of functions, click on a function name. Source file should scroll to bring the function into view, instead some other line of code is highlighted as the outline target.
This is not happening for class methods inside _class.php files. The outline correctly tracks the class methods.

Extension version: 2.3.14
VS Code version: Code 1.52.1 (ea3859d4ba2f3e577a159bc91e3074c5d85c0523, 2020-12-16T16:34:46.910Z)
OS version: Windows_NT x64 10.0.19041

System Info

Item	Value
CPUs	Intel(R) Core(TM) i3-2120 CPU @ 3.30GHz (4 x 3293)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: unavailable_off opengl: enabled_on protected_video_decode: unavailable_off rasterization: unavailable_off skia_renderer: disabled_off_ok video_decode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	11.88GB (2.28GB free)
Process Argv	--crash-reporter-id 0b4aa02a-e4f0-4f47-b916-03aa961926c3
Screen Reader	no
VM	0%

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