TSL: Add increment and decrement and fix unsual for() expression syntax for transpiler (#1615)

Author: Methuselah96

types/three/src/Three.TSL.d.ts

@@ -130,6 +130,8 @@ export const dFdx: typeof TSL.dFdx;
 export const dFdy: typeof TSL.dFdy;
 export const dashSize: typeof TSL.dashSize;
 export const debug: typeof TSL.debug;
+export const decrement: typeof TSL.decrement;
+export const decrementBefore: typeof TSL.decrementBefore;
 export const defaultBuildStages: typeof TSL.defaultBuildStages;
 export const defaultShaderStages: typeof TSL.defaultShaderStages;
 export const defined: typeof TSL.defined;
@@ -194,6 +196,8 @@ export const hash: typeof TSL.hash;
 export const highpModelNormalViewMatrix: typeof TSL.highpModelNormalViewMatrix;
 export const highPrecisionModelViewMatrix: typeof TSL.highpModelViewMatrix;
 export const hue: typeof TSL.hue;
+export const increment: typeof TSL.increment;
+export const incrementBefore: typeof TSL.incrementBefore;
 export const instance: typeof TSL.instance;
 export const instanceIndex: typeof TSL.instanceIndex;
 export const instancedArray: typeof TSL.instancedArray;

types/three/src/nodes/math/OperatorNode.d.ts

@@ -79,6 +79,11 @@ export const bitXor: (a: NodeRepresentation, b: NodeRepresentation) => ShaderNod
 export const shiftLeft: (a: NodeRepresentation, b: NodeRepresentation) => ShaderNodeObject<OperatorNode>;
 export const shiftRight: (a: NodeRepresentation, b: NodeRepresentation) => ShaderNodeObject<OperatorNode>;
 
+export const incrementBefore: (a: NodeRepresentation) => ShaderNodeObject<Node>;
+export const decrementBefore: (a: NodeRepresentation) => ShaderNodeObject<Node>;
+export const increment: (a: NodeRepresentation) => ShaderNodeObject<Node>;
+export const decrement: (a: NodeRepresentation) => ShaderNodeObject<Node>;
+
 declare module "../tsl/TSLCore.js" {
     interface NodeElements {
         add: typeof add;
@@ -102,6 +107,10 @@ declare module "../tsl/TSLCore.js" {
         bitXor: typeof bitXor;
         shiftLeft: typeof shiftLeft;
         shiftRight: typeof shiftRight;
+        incrementBefore: typeof incrementBefore;
+        decrementBefore: typeof decrement;
+        increment: typeof increment;
+        decrement: typeof decrement;
     }
 }