refactor: align conditional checks with C implementation

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
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    status: passed
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    status: passed
---

Author: anandkaranubc

lib/node_modules/@stdlib/math/base/special/rempio2/lib/main.js

@@ -137,7 +137,7 @@ function rempio2( x, y ) {
 	var n;
 	var z;
 
-	hx = getHighWord( x );
+	hx = getHighWord( x )|0; // asm type annotation
 	ix = (hx & ABS_MASK)|0; // asm type annotation
 
 	// Case: |x| ~<= π/4 (no need for reduction)
@@ -155,7 +155,7 @@ function rempio2( x, y ) {
 		}
 		// Case: |x| ~<= 3π/4
 		if ( ix <= THREE_PIO4_HIGH_WORD ) {
-			if ( x > 0.0 ) {
+			if ( hx > 0 ) {
 				z = x - PIO2_1;
 				y[ 0 ] = z - PIO2_1T;
 				y[ 1 ] = (z - y[0]) - PIO2_1T;
@@ -166,7 +166,7 @@ function rempio2( x, y ) {
 			y[ 1 ] = (z - y[0]) + PIO2_1T;
 			return -1;
 		}
-		if ( x > 0.0 ) {
+		if ( hx > 0 ) {
 			z = x - ( 2.0*PIO2_1 );
 			y[ 0 ] = z - TWO_PIO2_1T;
 			y[ 1 ] = (z - y[0]) - TWO_PIO2_1T;
@@ -185,7 +185,7 @@ function rempio2( x, y ) {
 			if ( ix === THREE_PIO2_HIGH_WORD ) {
 				return rempio2Medium( x, ix, y );
 			}
-			if ( x > 0.0 ) {
+			if ( hx > 0 ) {
 				z = x - ( 3.0*PIO2_1 );
 				y[ 0 ] = z - THREE_PIO2_1T;
 				y[ 1 ] = (z - y[0]) - THREE_PIO2_1T;
@@ -200,7 +200,7 @@ function rempio2( x, y ) {
 		if ( ix === TWO_PI_HIGH_WORD ) {
 			return rempio2Medium( x, ix, y );
 		}
-		if ( x > 0.0 ) {
+		if ( hx > 0 ) {
 			z = x - ( 4.0*PIO2_1 );
 			y[ 0 ] = z - FOUR_PIO2_1T;
 			y[ 1 ] = (z - y[0]) - FOUR_PIO2_1T;
@@ -236,7 +236,7 @@ function rempio2( x, y ) {
 		nx -= 1;
 	}
 	n = rempio2Kernel( TX, TY, e0, nx, 1 );
-	if ( x < 0.0 ) {
+	if ( hx < 0 ) {
 		y[ 0 ] = -TY[ 0 ];
 		y[ 1 ] = -TY[ 1 ];
 		return -n;