Passing array uniform doesn't work on Metal

[BlackGoku36]

Describe the bug
Passing uniform of array to shader doesn't work on metal

To Reproduce

//get constant location like this
a = pipeline.getConstantLocation("lights[" + i + "]");

Expected behavior
Should be able to pass array of something to shader

Execution Environment:

• Host system (where you compile your code): MacOS (Metal)
• Target system (where you run your code): MacOS (Metal)
• IDE used (if any): VSCODE
• Kha revision: 7ed4fea
• Kha build output (Using Kha...):

Using Kha (0ad34631, ?? Backends/Kore/) from /Users/urjasvisuthar/Kha
Creating Kha project.
Exporting asset 1 of 3 (potrait.png).
Exporting asset 2 of 3 (test.bin).
Exporting asset 3 of 3 (test.gltf).
Compiling shader 1 of 8 (shade.frag.glsl).
Compiling shader 2 of 8 (shade.vert.glsl).
Compiling shader 3 of 8 (shadow.frag.glsl).
Compiling shader 4 of 8 (shadow.vert.glsl).
Compiling shader 5 of 8 (shadowcube.frag.glsl).
Compiling shader 6 of 8 (shadowcube.vert.glsl).
Compiling shader 7 of 8 (texdebug.frag.glsl).
Compiling shader 8 of 8 (texdebug.vert.glsl).
Compiling shader 1 of 8 (painter-colored.frag.glsl).
Compiling shader 2 of 8 (painter-colored.vert.glsl).
Compiling shader 3 of 8 (painter-image.frag.glsl).
Compiling shader 4 of 8 (painter-image.vert.glsl).
Compiling shader 5 of 8 (painter-text.frag.glsl).
Compiling shader 6 of 8 (painter-text.vert.glsl).
Compiling shader 7 of 8 (painter-video.frag.glsl).
Compiling shader 8 of 8 (painter-video.vert.glsl).
Using Kinc (e2a61ca0) from /Users/urjasvisuthar/Kha/Kinc
kincfile found.
Creating macOS project files.
Done.

• Application output (if it runs):

Starting Kinc
2021-07-30 15:27:55.648562+0530 New Project[3064:64418] Metal GPU Frame Capture Enabled
2021-07-30 15:27:55.648995+0530 New Project[3064:64418] Metal API Validation Enabled
Starting application
2021-07-30 15:27:55.850924+0530 New Project[3064:64418] [plugin] AddInstanceForFactory: No factory registered for id <CFUUID 0x6000001f4ba0> F8BB1C28-BAE8-11D6-9C31-00039315CD46
2021-07-30 15:27:55.911942+0530 New Project[3064:64418]   saved enable noise cancellation setting is the same as the default (=1)
deviceBufferSize = 4096

mSampleRate = 44100

mFormatFlags = 00000009

mBytesPerPacket = 8

mFramesPerPacket = 1

mChannelsPerFrame = 2

mBytesPerFrame = 8

mBitsPerChannel = 32