Tweaking the PowerShell path to execute the 64-bit version instead of 32-bit

Easter egg: this commit was done via the VSCode PS shell!

src/vs/workbench/parts/terminal/common/terminal.ts

@@ -17,7 +17,6 @@ export const TERMINAL_SERVICE_ID = 'terminalService';
 
 export const TERMINAL_DEFAULT_SHELL_LINUX = !platform.isWindows ? (process.env.SHELL || 'sh') : 'sh';
 export const TERMINAL_DEFAULT_SHELL_OSX = !platform.isWindows ? (process.env.SHELL || 'sh') : 'sh';
-/**    const TERMINAL_DEFAULT_SHELL_WINDOWS moved to ../electron-browser/terminal.ts */
 
 export const TERMINAL_DEFAULT_RIGHT_CLICK_COPY_PASTE = platform.isWindows;
 

src/vs/workbench/parts/terminal/electron-browser/terminal.ts

@@ -8,7 +8,11 @@ import * as os from 'os';
 import platform = require('vs/base/common/platform');
 import processes = require('vs/base/node/processes');
 
-const powershellPath = `${ process.env.SystemRoot }/system32/WindowsPowerShell/v1.0/powershell.exe`;
+const powerShellExePath =
+		!process.env.hasOwnProperty('PROCESSOR_ARCHITEW6432')
+			? `${process.env.windir}\\System32\\WindowsPowerShell\\v1.0\\powershell.exe`
+			: `${process.env.windir}\\Sysnative\\WindowsPowerShell\\v1.0\\powershell.exe`;
+
 const isAtLeastWindows10 = platform.isWindows && parseFloat(os.release()) >= 10;
 
-export const TERMINAL_DEFAULT_SHELL_WINDOWS = isAtLeastWindows10 ? powershellPath : processes.getWindowsShell();
+export const TERMINAL_DEFAULT_SHELL_WINDOWS = isAtLeastWindows10 ? powerShellExePath : processes.getWindowsShell();