use project relative preference for declaration emit

Fixes #39117

Author: sheetalkamat

src/compiler/checker.ts

@@ -5513,7 +5513,7 @@ namespace ts {
                         specifierCompilerOptions,
                         contextFile,
                         moduleResolverHost,
-                        { importModuleSpecifierPreference: isBundle ? "non-relative" : "relative", importModuleSpecifierEnding: isBundle ? "minimal" : undefined },
+                        { importModuleSpecifierPreference: isBundle ? "non-relative" : "project-relative", importModuleSpecifierEnding: isBundle ? "minimal" : undefined },
                     ));
                     links.specifierCache ??= new Map();
                     links.specifierCache.set(contextFile.path, specifier);

src/compiler/moduleSpecifiers.ts

@@ -191,7 +191,9 @@ namespace ts.moduleSpecifiers {
         }
 
         if (relativePreference === RelativePreference.ExternalNonRelative) {
-            const projectDirectory = host.getCurrentDirectory();
+            const projectDirectory = compilerOptions.configFilePath ?
+                toPath(getDirectoryPath(compilerOptions.configFilePath), host.getCurrentDirectory(), info.getCanonicalFileName) :
+                info.getCanonicalFileName(host.getCurrentDirectory());
             const modulePath = toPath(moduleFileName, projectDirectory, getCanonicalFileName);
             const sourceIsInternal = startsWith(sourceDirectory, projectDirectory);
             const targetIsInternal = startsWith(modulePath, projectDirectory);

tests/baselines/reference/tsbuild/declarationEmit/initial-build/when-declaration-file-used-inferred-type-from-referenced-project.js

@@ -109,7 +109,7 @@ exports.__esModule = true;
 }
 
 //// [/src/packages/pkg2/lib/src/index.d.ts]
-export declare function fn4(): import("../../pkg1/src").IThing;
+export declare function fn4(): import("@fluentui/pkg1/src").IThing;
 
 
 //// [/src/packages/pkg2/lib/src/index.js]
@@ -139,7 +139,7 @@ exports.fn4 = fn4;
       },
       "../src/index.ts": {
         "version": "8515046367-import { IThings } from '@fluentui/pkg1';\nexport function fn4() {\n  const a: IThings = { thing1: { a: 'b' } };\n  return a.thing1;\n}",
-        "signature": "-10018297277-export declare function fn4(): import(\"../../pkg1/src\").IThing;\r\n",
+        "signature": "-4446422616-export declare function fn4(): import(\"@fluentui/pkg1/src\").IThing;\r\n",
         "affectsGlobalScope": false
       }
     },