Rascal modules and Java classes of rascal are loaded from different versions

[sungshik]

Scope (branches)

• Rascal: replace-lib-by-mvn-and-others (Replace lib:/// scheme by mvn:/// and file:/// and jar+file:/// everywhere rascal#1969)
• Rascal LSP: replace-lib-scheme (testing rascal without the lib scheme #454)

Problem

Background

• Which versions of projects are loaded in the REPL? #537

Situation

• Project rascal is open in the workspace.
• A REPL is created in rascal.

Expected

Both the Rascal modules and the Java classes of rascal should be loaded from the version in the workspace.

Actual

• ✔️ The Rascal modules of rascal are loaded from the version in the workspace.
• ⛔ The Java classes of rascal are loaded from the version in the VS Code extension.